The problem with os.readlink() is it will only resolve 1 step of the link. We can have a situation where A links to another link B, and B link is dangling. $ ln -s /tmp/example/notexist /tmp/example/B $ ln -s /tmp/example/B /tmp/example/A $ ls -l /tmp/example A -> /tmp/example/B B -> /tmp/example/notexist Now in Python, os.readlink … Read more
In general, no. Technically, there will be a very slight performance hit for the indirection, but it won’t be noticeable to your application. As an example, most shared libraries are symlinks to symlinks (e.g. libQtCore.so -> libQtCore.so.4 -> libQtCore.so.4.7 -> libQtCore.so.4.7.1).
⸻⸻ Short answer ⸻⸻ Define environment variable: CYGWIN=winsymlinks:nativestrict As pointed out by mwm you may also have to go to the settings or to run bash as Administrator. See the Notes section. ⸻⸻ Long answer ⸻⸻ Default Cygwin symlinks are just regular files By default Cygwin creates text files as workaround for Windows symlink flaw. … Read more
readlink -f <linkname> See the readlink(1) man page for Linux, FreeBSD, NetBSD, OpenBSD, DragonFly or the GNU coreutils info page.
os.symlink creates a single symlink. ln -s creates multiple symlinks (if its last argument is a directory, and there’s more than one source). The Python equivalent is something like: dst = args[-1] for src in args[:-1]: os.symlink(src, os.path.join(dst, os.path.dirname(src))) So, how does it work when you do ln -s /home/guest/dir1/* /home/guest/dir2/? Your shell makes that … Read more
It’s important to know that ln -s SOURCE TARGET create a symlink called TARGET which is symbolically linked to the string SOURCE. If SOURCE is a relative path (that is, it does not start with /), then it is interpreted relative to the directory that TARGET is in. If it is an absolute path, then … Read more
# test if symlink is broken (by seeing if it links to an existing file) if [ ! -e “$F” ] ; then # code if the symlink is broken fi
Well I found the answer, though to describe it as badly documented is an understatement! First of all, this TechEd article highlights the fact that users can “enable or disable any of the four evaluations that are available in symbolic links”. Those four “evaluations” include remote to local and local to remote. It doesn’t give … Read more
Since version 1.5.3 of the native Git client git clone and git init will probe the target file system for symlink support and set the local repository configuration for core.symlinks accordingly, i.e. to false for FAT or NTFS. This makes symlinks created and committed e.g. under Linux appear as plain text files that contain the … Read more
Using GNU find, this will find the files that are hard linked or symlinked to a file: find -L /dir/to/start -samefile /tmp/orig.file